Air-pump.



No. 847,785.. 'PATBNTED MAR. 19, 1907.

- 1=. B. KLB-INEBERG. y

AIR PUMP. APPL1OATION 'I`ILED HTB'ZG. 1906.

Fig. E..

Secam Af B.

inn

x5, a very simple durable air-pump of t e type' i 1nNiTEn sTATEsrATENf-rA OFETOE. y

PAUL E. KLEINEBERG, OF OROTON FALLS,` NEW YORK.

" AIR-PUMP. p

Tov all whom it may concern: v

Be it known that I, PAUL E. KLEINEBERG, a citizen of the United States,and a resident of Croton Falls, in the county of Westchester --and Stateof New York, have invented certain new and. useful Improvements in Air-Pumps, of which the following is a specification., l i

The invention relates to improvements in` air-pumps..foninflatingtiresand other pur poses; vanduit consists in the novel features,construction, arrangement, and combinations of parts hereinafterdescribed, and particularly pointed out inthe claims..

The object of the inventien is to rovide passes to the space within theouter tube below the piston, and during the downstroke of the inner tubethe air below said l piston is compressed and forced into an annularchamber between the inner and outer tubes andwhich connects with,v thetire to be inflated. Upon'thesucceeding upstroke its upper end and,receives, an externallythreaded dependin hollow hub 21 formed of theinner-tube airis again admitted to the space within the lower end/of theouter tube.

and the air which was partly compressed on the preceding downstrokeandentered the annular chamber between the tubes becomes furthe rcompressed and forced along to the tire.

Thus during eachupstroke of the innertube additional airis suppliedl tothe .chamber and duringeach downstroke of the inner tube the fresh airadmitted during the upstroke thereof is placed under compression andforced intov the said annular space between `the tubes pre aratory tobeing further compressed upon t e succeeding upstroke 4of the innertube. A.

The-invention willv be fully understood from the detailed descriptionhereinafter pre- Specification ofLetters Patent.

Patented March 19, 1907.

. Application nea rebaryz, 190e.. Serin Nacoaezo.

sented, reference begin had to the accompanying drawings, in whichfFigure 1 is a central vertical'sect-ion of an air-pump constructed inaccordance with and embodying theinvention Fig. V2 ris a-de- -tachedcentral vertical transverse section vof the. handle and 4means lthereonforconnecting the same with the inner tube'of the pump', Fig.; 3 adetached end view ofthe lower end of the inner tubewith the cup pistonthereon. Fig. 4 is a detached side view of a portion of the upper end'of the outer tubeof the pump. Figi `5 yis a detached view o f a'portion of the lower end of -the v,pump construction and illustratesmorepar'- ticularlythe supportingrbaseof same. ,Fig. l,

6 is adetached loweryendviewgofthe cuppiston, .Fig .7 is a detached4vertical section `of the cap on thejoutertube. FiguS is alike View of.the packing used. inzsaid cap, and

Fig. 9 vis a central,vertical section .showing e modified methodofapplyingpampa at .the upper end of the outer tubje.

In the drawing s, 1l designates the outer tubeor barrel'of the lump ;.2,tl1e,i.1`11.1er tube" thereof; 3, the hand e Aconnectedwith said innertube, and 4;. the l ase uponV which the pum structure is supportedandYtio/Which the ower end of the outer .tube is secured,

.said base'being preferably in one integral casting and, of elongatedoutline and having at its centeran internally-threaded vertical hub 20,receiving' and engaging la screwthread on the lowerendof said outertube.

The inner tube 2 is internally threadedat integrally with the and-le 3,whic h is preferably inthe form of lan integral casting; of elongatedoutline, comprising a vertical web portion 22 and transversel anges 23atgthe i edges thereof, said handle thus being of. I-y shape incross-section and while possessing the requisite strength is of minimumWeight and capable of being economically ymanuff'actured. The hub 21 isformed at the center of -the lower .edge of the handle 3 in the formofIOO a hollow plug,whos'e upper end s'erves as a cap for the upper. endofthe inner tube 2,

'this'cap being formed at its center with an opening 13,. whosediameteris reater than the thickness of the .web 22 as 's own in Fig. ,A

iheinsrtub'elz' is I .is

compression' chamber 27, Isaid innertube A Avhavingfat its outer end ahandle and an airinlet and at its inner end a cup-piston, an airoutletopening and a valve therefor, said pis# .ton havin its vertical yieldinsides extended upwar ly into the lower en of said chainber 27. around.the lower end of Asaid inner tube, and said'outer tub'ehaving anyoutletuoz'zle leading from' said chamber, 4the conlo struction describedpermitting the air under compression below said piston 'during thedownstroke of said inner tubey to force its way into said' chamber.,where it is further compressed during the succeeding -upstroke ofsaidinner tnbe,while,at the same time an additionall supply, of airpasses through said -valvedfoutletfopenng to "theys ace belowsaidpiston; substantially as s et orthfr 2.,4 1 ump comprising the innerand outer "tubes, t e former having at'its outer end a handle and anair-inlet and at. its inner end 'a piston, an outletopening and avalve'there, for, anden-id outer tube' being sel'iaratedl by achamberfro'm said inner tube and having upon its upper end the ca andpacking, said I cap havinga space forme in it in communication withs'aid chamber and a nozzle leading from' said spacci-land said chamberaround a the lower end of t e inner tube being. occubyfth'everticalyieldin- 'portion of said piston; substantially .as set orth.

prising t e inner and outer tubes 1. 2 separated y rom eachother by anair recei ving and compression chamber 27 said inner tubehay;sry s ingat its outer end a handle and an airgiiilt and at its inner end .the pluv.52cmniaimng an j air-outlet, `the c'upiston, t e'ring 7 securing saidcu piston a yond tiie sides 'ofsaid innertube and not to the inner wallsof said outer tube, and a valve for said outlet, said piston havin itsvertical vielding. sides extendedupwar lyinto'the lower4 end ofv saidchamber 27 around the lower end of said inner tube and said outer tubehaving an outlet-nozzleI leading from i saidV chamber, the constructiondescribed permitting theair under compression below said piston duringthe downstroke of said 'in- 5o 'ner tube to force itsfwayl into' saidchamber,

extending outwardly 'be-4 where itis further compressed during thesue"le needing upstroke of sand inner tube, while atthe Sametime anadditional supply of air 'passes tlju'ouvh said valved-Qutlet-openngtethe space belbw said piston; substantially as `55 setforth.'

A pump of the compound type com-` prising an outer tube, au innerreciprooatory 'member having a land-'le at its outerend and a cup-pistonat 'i sV walls of said tubean fsa d inner member be ing separatedby ache ber from said outer.- tube, an outlet-'nozale vv,for coinpelssedair-. from said` chamber, and means' forsazdmitting f said inner member,whereby. duringeach' downstrke of said inner memfesfhn, "rad-g,Inittedibelow the piston is"compressed?'andH forces pssage around saidpiston into said y chamber, and duringV each upstrokeeof said-1o pistonthe air .invsaid chamber is further comy pressed and additional air isadmitted 'below said piston.;l substantially as set forth..

. 5. A pump of the compound type comprising an outer tube, an innerreciprocato member having a handle .at its outer end an a piston atitsvnner end engaging the walls of said-tube and said inner memberbeingsepa-y rated by a chamber from said outer tube, an outlet-nozzle for comressed air from said chamber, means for a mitting air below said istonduring the upstroke of said inner memer, and means. for admitting theair under compression below said piston to said Chani- ,ber andreventing the return of saine,

whereby drilring eachdownstroke of s'aid inner member the air admittedbelow the pis-4 ton compressed and -forced into said chamber, and duringeach upstroke of said pistonthe air in said chamber is furthercompressed and additional air is admitted below said piston;substantially as set forth.

Signed'at NewYork cit in'the county of New York and State of l\ew York,this 23d .day of February, A.4 D. 1906.

ARTHUR llialnorn CHAS. C. GILL.

' 'air below-saidpiston 'during the .,upstroke "of 6 5y

